Unforgotten season 5: When will the ITV drama return? Who is in the cast? Who will replace Nicola Walker? All you need to know

Sanjeev Bhaskar will be back as DI Sunny Khan, but who will be joining him to solve decades-old crimes in season 5 following the exit of Nicola Walker?

By Alex Fletcher Published: 30 March 2021 - 4.31pm
ITV Sanjeev Bhaskar and Nicola Walker as Sunny and Cassie in Unforgotten

*Warning season 4 spoilers ahead*

Unforgotten season 4 has been breaking records in 2021 with over 7.5 million viewers tuning in every week for the latest developments in the cold case drama.

After the gripping season 4 finale left viewers weeping the demise of Nicola Walker’s Cassie Stuart, fans feared writer Chris Lang might have drawn the series to a close.

Thankfully that isn’t the case and ITV has confirmed Unforgotten will be back for a fifth season.

Here is everything you need to know about Unforgotten season 5.

Will there be an Unforgotten season 5?

Nicola Walker and Sanjeev Bhaskar as Cassie and Sunny in Unforgotten ITV

Yes there will. ITV released a statement after the season 4 finale confirming the next series.

"ITV would like to thank Nicola Walker for playing the brilliant role of Cassie Stuart in four series of Unforgotten which has become one of the best loved and most critically acclaimed police dramas on TV.

“Nicola and writer Chris Lang decided that Cassie's story would come to an end last night, but that Unforgotten would continue, in series 5, with a new case, and a new 'Partner in Crime' for DI Sunny Khan.”

Unforgotten is expected to return for season 5 in early 2022.

Who will replace Cassie Stuart?

Nicola Walker as Cassie Stuart in Unforgotten ITV

All ITV have announced is that there will be a new ‘Partner in Crime’ for Sunny.

It could be a promotion for one of the series regulars such as Fran Lingley (Carolina Main), Murray Boulting (Jordan Long) or Jake Collier (Lewis Reeves).

However, it is more likely the show will bring in a DCI and shake-up the dynamic of the team and build a new partnership with Sanjeev Bhaskar’s DI Sunny Khan.

Who are the Unforgotten cast?

The cast for the first four seasons were lead by Nicola Walker (Last Tango in Halifax, The Split) as DCI Cassie Stuart, alongside Sanjeev Bhaskar (Yesterday, Goodness Gracious Me) as DI Sunny Khan.

Other regular characters included Peter Egan (Downton Abbey), Alastair Mackenzie (Deep Water), Carolina Main (Blood), Lewis Reeves (Uncle) and Jordan Long (Prime Suspect 1973).

The format of the show means that it can get in new guest stars as the suspects in every series.

Season 4's guests included Sheila Hancock, Susan Lynch, Phaldut Sharma, Liz White and Andy Nyman.

Previous series have included Tom Courtenay, Trevor Eve, Mark Bonnar, Neil Morrissey, James Fleet and Kevin McNally.

What happened in season 4?
*Warning: spoilers ahead*

Andy Nyman as Dean Barton in Unforgotten ITV

Season four saw Cassie and Sunny solving the murder of Matthew Walsh, whose body was found headless and handless in a freezer 30 years after his death.

His death was eventually linked to four trainee coppers from 1990: Fiona Grayson, Elizabeth ‘Liz’ Baildon, Dean Barton, and Ram Sidhu.

The season finale revealed that it was Dean Barton (Andy Nyman) who had killed Matthew Walsh in a revenge attack for the death of his brother.

But that wasn’t the only shock in the last episode as Cassie, with retirement on the horizon, was killed off following her traffic accident at the end of the penultimate episode.

Watch all of Unforgotten season 4 on ITV Hub.

Seasons 1-3 of Unforgotten are available on BritBox.

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